Hello mischl,
TTL gets a little wishy washy when it's inputs are around 1/2 the supply voltage, it knows 1 volt is logic low and 4 v is logic High, but somewhere in between it gets a little fuzzy and it wants to behave like an analog device. The Schmitt Triggers are there to address that issue so it switches in an all or nothing manner.
JS
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
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Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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